/* ============================================
   CONTACT SECTION - PROFESSIONAL DESIGN
   ============================================ */

.contact-section {
    position: relative;
    overflow: hidden;
}

/* Subtle background pattern for depth */
.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(78, 205, 196, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(41, 128, 185, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.contact-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3.5rem;
    margin-top: 4rem;
    position: relative;
}

/* ============================================
   LEFT SIDE - CONTACT INFO
   ============================================ */

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.75rem 1.5rem;
    background: var(--card-bg-light);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

/* Subtle gradient border effect */
.info-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.1),
    rgba(41, 128, 185, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    
    mask: 
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.info-item:hover::before {
    opacity: 1;
}

.info-item:hover {
    transform: translateX(8px);
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.05), rgba(41, 128, 185, 0.02));
    box-shadow: 0 4px 20px rgba(78, 205, 196, 0.08);
}

.info-item i {
    font-size: 1.4rem;
    color: var(--primary);
    margin-top: 2px;
    min-width: 28px;
    transition: transform 0.3s ease;
}

.info-item:hover i {
    transform: scale(1.1);
}

.info-item h4 {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    opacity: 0.8;
}

.info-item p {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0;
    line-height: 1.7;
    font-weight: 400;
}

/* ============================================
   SOCIAL ICONS
   ============================================ */

.social-icons {
    display: flex;
    gap: 0.75rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(78, 205, 196, 0.1);
}

.social-icons a {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg-light);
    color: var(--text-primary);
    font-size: 1.15rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(78, 205, 196, 0.15);
    position: relative;
    overflow: hidden;
}

.social-icons a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-icons a i {
    position: relative;
    z-index: 1;
    transition: transform 0.3s ease;
}

.social-icons a:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(78, 205, 196, 0.25);
    border-color: var(--primary);
}

.social-icons a:hover::before {
    opacity: 1;
}

.social-icons a:hover i {
    color: white;
    transform: scale(1.1);
}

/* ============================================
   RIGHT SIDE - CONTACT FORM (MINIMAL DESIGN)
   ============================================ */

.contact-form {
    background: var(--card-bg-light);
    padding: 1rem 1rem;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(78, 205, 196, 0.08);
    position: relative;
}

/* Decorative corner accent */
.contact-form::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle at top right, rgba(78, 205, 196, 0.08), transparent 70%);
    pointer-events: none;
    border-radius: 0 16px 0 0;
}

.form-group {
    margin-bottom: 1rem;
    position: relative;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    opacity: 0.85;
}

.form-group label .required {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.75rem;
    text-transform: none;
    letter-spacing: 0;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid rgba(15, 23, 42, 0.2);
    border-radius: 0;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

/* Dark mode border */
body.dark .form-group input,
body.dark .form-group textarea {
    border-bottom-color: rgba(229, 231, 235, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--text-primary);
    background: transparent;
}

/* Animated underline effect */
.form-group input:focus ~ .input-underline,
.form-group textarea:focus ~ .input-underline {
    transform: scaleX(1);
}

.form-group textarea {
    resize: vertical;
    min-height: 70px;
    max-height: 250px;
    line-height: 1.6;
}

/* ============================================
   SUBMIT BUTTON (ROUNDED DESIGN)
   ============================================ */

.send-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--secondary);
    color: var(--bg-light);
    border: none;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
    text-transform: none;
    margin-top: 1rem;
}

.send-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.send-btn:hover::before {
    left: 100%;
}

.send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.send-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.15);
}

/* Loading state */
.send-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.send-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--bg-light);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success state */
.send-btn.success {
    background: #2ECC71;
    color: white;
}

/* Error state */
.send-btn.error {
    background: #E74C3C;
    color: white;
}

.response-time {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 1rem;
    font-style: italic;
    opacity: 0.8;
}

/* Form status messages */
.form-status {
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    font-size: 0.85rem;
    text-align: center;
    display: none;
}

.form-status.show {
    display: block;
    animation: slideDown 0.3s ease;
}

.form-status.success {
    background: rgba(46, 204, 113, 0.1);
    color: #27AE60;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.form-status.error {
    background: rgba(231, 76, 60, 0.1);
    color: #C0392B;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* ================= LARGE DESKTOP (≤ 1024px) ================= */
@media (max-width: 1024px) {
    .contact-container {
        grid-template-columns:0.9fr 1fr;
        gap: 2.5rem;
    }

    .contact-info {
        order: 1;
    }

    .contact-form {
        order: 2;
        padding: 2.5rem 2rem;
    }

    .info-item:hover {
        transform: translateY(-4px);
    }
}


/* ================= TABLET (768px - 968px) ================= */
@media (max-width: 968px) {
    .contact-container {
        grid-template-columns:0.9fr 1fr;
        gap: 3rem;
    }
    
    .contact-form {
        padding: 2.25rem 2rem;
    }
    
    .info-item:hover {
        transform: translateY(-4px) translateX(0);
    }
}


/*================= MOBILE LANDSCAPE (600px - 768px) ================= */
@media (max-width: 768px) {

    .contact-section {
        padding: 4rem 6%;
    }

    .contact-container {
        grid-template-columns:0.9fr 1fr;
        margin-top: 2.5rem;
        gap: 2rem;
    }

    .info-item {
        padding: 1.25rem 1.25rem;
        gap: 1rem;
    }

    .info-item h4 {
        font-size: 0.85rem;
    }

    .info-item p {
        font-size: 0.95rem;
    }

    .contact-form {
        padding: 2rem 1.5rem;
        border-radius: 14px;
    }

    .form-group input,
    .form-group textarea {
        font-size: 0.95rem;
    }

    .send-btn {
        padding: 0.9rem;
        font-size: 0.9rem;
    }

    .social-icons {
        justify-content: center;
        gap: 0.7rem;
    }

    .social-icons a {
        width: 44px;
        height: 44px;
    }
}

/*================= MOBILE PORTRAIT (480px - 600px) ================= */
@media (max-width: 600px) {
    .contact-section {
        padding: 4rem 5%;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        margin-top: 3rem;
        gap: 2.5rem;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
    
    .social-icons {
        gap: 0.6rem;
    }
    
    .social-icons a {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
    
    .info-item {
        padding: 1.5rem 1.25rem;
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .send-btn {
        padding: 0.9rem 1.5rem;
        font-size: 0.9rem;
    }
}

/*================= SMALL MOBILE ( <= 480px) ================= */
@media (max-width: 480px) {

    .contact-section {
        padding: 3.5rem 5%;
    }

    .header h2 {
        font-size: 1.6rem;
    }

    .header p {
        font-size: 0.95rem;
    }

    .info-item {
        padding: 1.1rem;
    }

    .info-item i {
        font-size: 1.2rem;
    }

    .contact-form {
        padding: 1.75rem 1.25rem;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }

    .social-icons a {
        width: 40px;
        height: 40px;
        font-size: 0.95rem;
        border-radius: 10px;
    }

    .send-btn {
        border-radius: 40px;
    }

    .response-time {
        font-size: 0.75rem;
    }
}

/* ============================================
   DARK MODE ENHANCEMENTS
   ============================================ */

body.dark .info-item {
    background: rgba(30, 41, 59, 0.6);
}

body.dark .info-item:hover {
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 4px 20px rgba(78, 205, 196, 0.15);
}

body.dark .contact-form {
    background: rgba(30, 41, 59, 0.6);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

body.dark .social-icons a {
    background: rgba(30, 41, 59, 0.6);
    border-color: rgba(78, 205, 196, 0.2);
}

body.dark .send-btn {
    background: var(--text-primary);
    color: var(--bg-light);
}